CVE-2021-1245 | Cisco Finesse OpenSocial Gadget Editor Cross-Site Scripting Vulnerability

Cisco Finesse and Cisco Unified CVP OpenSocial Gadget Editor Cross-Site Scripting Vulnerability A vulnerability in the web-based management interface of Cisco Finesse and Cisco Unified CVP could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Published: 2021-01-13 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-1245 is rated Moderate Risk (50.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.37%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-1245

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.47% 1.37% +0.90%
2 2025-11-21 0.27% 0.47% +0.21%
3 2025-11-18 — 0.27% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-1245

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.5 [email protected]
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2021-1245

Affected software / configurations for CVE-2021-1245

Vendor Product Version Raw CPE
cisco finesse < 12.0\(1\) cpe:2.3:a:cisco:finesse:*:*:*:*:*:*:*:*
cisco finesse 12.0\(1\) cpe:2.3:a:cisco:finesse:12.0\(1\):-:*:*:*:*:*:*
cisco finesse 12.0\(1\) cpe:2.3:a:cisco:finesse:12.0\(1\):es1:*:*:*:*:*:*
cisco finesse 12.0\(1\) cpe:2.3:a:cisco:finesse:12.0\(1\):es2:*:*:*:*:*:*
cisco finesse 12.0\(1\) cpe:2.3:a:cisco:finesse:12.0\(1\):es3:*:*:*:*:*:*
cisco finesse 12.0\(1\) cpe:2.3:a:cisco:finesse:12.0\(1\):es4:*:*:*:*:*:*
cisco finesse 12.0\(1\) cpe:2.3:a:cisco:finesse:12.0\(1\):es5:*:*:*:*:*:*
cisco finesse 12.5\(1\) cpe:2.3:a:cisco:finesse:12.5\(1\):-:*:*:*:*:*:*
cisco finesse 12.5\(1\) cpe:2.3:a:cisco:finesse:12.5\(1\):es1:*:*:*:*:*:*
cisco finesse 12.5\(1\) cpe:2.3:a:cisco:finesse:12.5\(1\):es2:*:*:*:*:*:*
cisco finesse 12.5\(1\) cpe:2.3:a:cisco:finesse:12.5\(1\):es3:*:*:*:*:*:*
cisco finesse 12.5\(1\) cpe:2.3:a:cisco:finesse:12.5\(1\):es4:*:*:*:*:*:*

References for CVE-2021-1245

cvelogic Threat Intelligence